147 lines
3.2 KiB
C#
147 lines
3.2 KiB
C#
using System;
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using ANX.Framework.Audio;
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using ANX.Framework.NonXNA.Development;
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using ANX.Framework.NonXNA.SoundSystem;
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using OpenTK.Audio.OpenAL;
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// This file is part of the ANX.Framework created by the
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// "ANX.Framework developer group" and released under the Ms-PL license.
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// For details see: http://anxframework.codeplex.com/license
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namespace ANX.SoundSystem.OpenAL
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{
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[Developer("AstrorEnales")]
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public class OpenALSoundEffectInstance : ISoundEffectInstance
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{
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#region Private
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private readonly OpenALSoundEffect parent;
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private float currentPan;
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private int handle;
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#endregion
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#region Public
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public bool IsLooped
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{
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get
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{
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bool result;
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AL.GetSource(handle, ALSourceb.Looping, out result);
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return result;
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}
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set { AL.Source(handle, ALSourceb.Looping, value); }
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}
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public float Pan
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{
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get { return currentPan; }
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set
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{
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currentPan = value;
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// TODO: set actual parameter
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}
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}
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public float Pitch
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{
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get
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{
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float result;
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AL.GetSource(handle, ALSourcef.Pitch, out result);
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return result;
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}
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set { AL.Source(handle, ALSourcef.Pitch, value); }
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}
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public SoundState State { get; private set; }
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public float Volume
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{
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get
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{
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float result;
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AL.GetSource(handle, ALSourcef.Gain, out result);
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return result;
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}
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set { AL.Source(handle, ALSourcef.Gain, value); }
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}
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#endregion
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#region Constructor
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internal OpenALSoundEffectInstance(OpenALSoundEffect setParent)
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{
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parent = setParent;
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State = SoundState.Stopped;
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handle = AL.GenSource();
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AL.Source(handle, ALSourcei.Buffer, parent.BufferHandle);
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IsLooped = false;
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Pitch = 1f;
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Volume = 1f;
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Pan = 0f;
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ALError error = AL.GetError();
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if (error != ALError.NoError)
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throw new Exception("OpenAL error " + error + ": " + AL.GetErrorString(error));
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}
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#endregion
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#region Play
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public void Play()
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{
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if (State == SoundState.Playing)
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return;
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State = SoundState.Playing;
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AL.SourcePlay(handle);
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}
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#endregion
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#region Pause
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public void Pause()
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{
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if (State == SoundState.Paused)
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return;
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State = SoundState.Paused;
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AL.SourcePause(handle);
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}
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#endregion
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#region Stop
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public void Stop(bool immediate)
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{
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if (State == SoundState.Stopped || immediate == false)
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return;
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State = SoundState.Stopped;
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AL.SourceStop(handle);
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}
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#endregion
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#region Resume
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public void Resume()
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{
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if (State == SoundState.Playing)
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return;
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State = SoundState.Playing;
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AL.SourcePlay(handle);
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}
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#endregion
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#region Apply3D (TODO)
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public void Apply3D(AudioListener[] listeners, AudioEmitter emitter)
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{
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throw new NotImplementedException();
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}
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#endregion
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#region Dispose
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public void Dispose()
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{
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AL.DeleteSource(handle);
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handle = -1;
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}
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#endregion
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}
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}
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